Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760625AbYBMSZa (ORCPT ); Wed, 13 Feb 2008 13:25:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751883AbYBMSZV (ORCPT ); Wed, 13 Feb 2008 13:25:21 -0500 Received: from rgminet01.oracle.com ([148.87.113.118]:63137 "EHLO rgminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751847AbYBMSZU (ORCPT ); Wed, 13 Feb 2008 13:25:20 -0500 Message-ID: <47B335A6.3080806@oracle.com> Date: Wed, 13 Feb 2008 10:23:34 -0800 From: Randy Dunlap User-Agent: Thunderbird 1.5.0.5 (X11/20060719) MIME-Version: 1.0 To: mgross@linux.intel.com CC: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH]intel-iommu batched iotlb flushes References: <20080211224105.GB24412@linux.intel.com> <20080211152716.65f5a753.randy.dunlap@oracle.com> <20080212160553.GD27490@linux.intel.com> <47B1CA9F.80004@oracle.com> <20080212195532.GA29132@linux.intel.com> <47B1FFB4.7010904@oracle.com> <20080213181029.GA1162@linux.intel.com> In-Reply-To: <20080213181029.GA1162@linux.intel.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1066 Lines: 28 > Index: linux-2.6.24-mm1/Documentation/kernel-parameters.txt > =================================================================== > --- linux-2.6.24-mm1.orig/Documentation/kernel-parameters.txt 2008-02-12 07:12:06.000000000 -0800 > +++ linux-2.6.24-mm1/Documentation/kernel-parameters.txt 2008-02-12 11:36:07.000000000 -0800 > @@ -822,6 +822,10 @@ > than 32 bit addressing. The default is to look > for translation below 32 bit and if not available > then look in the higher range. > + strict [Default Off] > + With this option on every umap_single operation will so I'll ask one more time :( Shouldn't this be "unmap_single" ? > + result in a hardware IOTLB flush operation as opposed > + to batching them for performance. > > io_delay= [X86-32,X86-64] I/O delay method > 0x80 -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/